<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
		 //    var  numbers = [1, 0 , -1 , 2 ];
			// var  maxnum = Math.max.apply(this, numbers);  
			// console.log(maxnum);
			var  numbers = [1, 0 , -1 , 2 ];
			var maxnums = Math.max.call(this,1, 0 , -1 , 2); 
			console.log(maxnums);
		</script>
	</body>
</html>
